baber/WOPTO huggingface dataset:
Patent GB-1206873-A (GB)
Title: 7alpha-METHYL-ANDROSTENE COMPOUNDS
IPC: C07J1/00
Filed: 1968-02-16
Abstract: 1,206,873. 7α-Methyl-androstane compounds. UPJOHN CO. 16 Feb., 1968 [15 March, 19671, No. 14553/70. Divided out of 1,206,872. Heading C2U. Novel steroids of the formula (where R<SP>111</SP> is H or C 1-12  carboxylic acyl and R is H or C 1-12  alkyl) are prepared by reduction of the corresponding 6#, 19-oxido compounds containing a 17#-acyloxy group with subsequent hydrolysis to the free 17-ols when required. They are used to prepare the known 17α-R<SP>11</SP>-7α-methyl-19-nor-testosterones (where R<SP>11</SP> is H or C 1-12  alkyl, alkenyl, alkynyl or haloalkynyl) by the following series of reactions (V) # (VI) is oxidation, (VI) # (VII) is decarboxylation and hydrolysis e.g. by heating with a strong mineral acid, and (VII) # (XVI) involves oxidation of the 17α-unsubstituted 17#-ol to the 17-one, protection of the 3-keto group by formation of an enamine, ketal or enol ether, conversion of the 17-keto group to a 17α-R<SP>11</SP>-17#-hydroxy grouping by standard procedures e.g. reaction with an alkali metal alkyne to give the 17α-alkynyl -17#-ol, and hydrolysis of the 3-protecting group; in the products a 17α-alkynyl group can be hydrogenated to the corresponding 17α-alkenyl or -alkyl group; (VIII) # (IX) is oxidation, (IX) # (X) is decarboxylation e.g. by treatment with a tertiary nitrogen base such as pyridine at a moderate temperature such as 50‹ C., (X) # (XI) is 3-ketalization with a C 1-12  alkanol in presence of a weak organic acid, (XI) # (XII) involves 17-oxidation and insertion of R<SP>11</SP> as described above, and (XII) # (XVI) is hydrolysis with a strong acid in a ketone e.g. acetone; alternatively (XII) can be hydrolysed with a weak acid in a ketone to give (XIII) and this rearranged to (XVI) by treatment with a strong acid in an alkanol; (VI) # (XIV) is decarboxylation with a tertiary nitrogen base at moderate temperature, (XIV) # (XV) is 3- ketalization as described above, and (XV) to (XI) involves hydrolysis to the 17#-ol, oxidation (R = H) at a low temperature to the 17-one and insertion of R<SP>11</SP> as described above. The novel steroids are stated to possess anabolic, androgenic, progestational, antifertility, cholesterol lowering and CNS-depressant properties, and they may be made up into pharmaceutical compositions with suitable carriers. Specifications 941,634, 1,104,462 and 1,206,874 are referred to.
Patent GB-200653-A (GB)
Title: Improvements in means for use in or in connection with the launching of ships
IPC: B63B9/00
Filed: 1922-05-25
Abstract: 200,653. Share, M., Kidd, C., Wood, J. W., and Ranson, W. May 25,1922. Energy-absorbing elements. - Fluid friction brakes, of the type in which liquid is by-passed between the ends of a cylinder by the reciprocation of a piston, are arranged with dual connections between the cylinder ends, each connection having a non-return valve. In the arrangement shown in Fig. 1, the movement of a ship 3 down a slip rotates the drums 1 and thus moves the pistons to and fro in the cylinders 7. Spring- adjustable one-way valves 12, 13 control the bypassing of a liquid such as oil from one end of the cylinder to the other, thus giving a variable braking effect. In the construction shown in Fig. 2, the pull on the cable rotates the loose drum which drives the shaft 4 through belt gearing and a clutch. The difference in speed between the drum and shaft causes the hexagonal ring carrying the pistons 6 to move relatively to the eccentric 18, thus causing the pistons to advance and recede in the cylinders 7 on the interior of the drum. Each pair of diametrically opposed cylinders is connected by by-pass pipes and valves, as in Fig. 1, to produce the braking effect. In a further modification the axes of the cylinders 6 are parallel to the shaft 4 and the pistons are actuated by a swash plate. The Specification states that fluid under pressure can be admitted to the braking cylinders to rotate the drums to exert a hauling action on the ship.
Patent GB-1209426-A (GB)
Title: Improvements in and relating to containers
IPC: B65D25/08
Filed: 1969-03-20
Abstract: 1,209,426. Blow-moulded plastics container. SOBREFINA S.A. 20 March, 1969 [9 April, 1968], No. 14733/69. Heading B5A. [Also in Division B8] A container comprises an inner thin-walled plastics body 6 having a dome-shaped bottom and a cylindrical body portion formed from a single sheet of plastics material bent double and with its side edges joined to form two sealing fins 7 that are folded in towards and pressed into the body portion, the plastics body being surrounded by an open-ended sleeve 8 of a stiff, mechanically strong material. A top part 11 provides a flange 14 that rests on the upper surface of sleeve 8. The container body is formed by inserting a folded sheet 1 of plastics material between co-operating mould halves 2 which trap and heat seal the lateral edges of the sheet, forming the fins 7. Application of a pressure between, and a vacuum outside the folded sheet when the material is hot causes the sheet to follow the shape of the mould. While still hot, or reheated, the fins 7 may be folded in towards, and pressed into the body 6 so that they do not project exteriorly, by inserting into and rotating the body in a hollow cylinder. Several containers are produced simultaneously by the mould halves 2 comprising a number of compartments, each housing a portion of the folded sheet 1.
Patent GB-1033053-A (GB)
Title: Improvements in or relating to alternating current machines
Inventor: WILLIAMS FREDERIC CALLAND
IPC: H02K3/28
Filed: 1962-04-17
Abstract: 1,033,053. Winding layouts for dynamoelectric machines. NATIONAL RESEARCH DEVELOPMENT CORPORATION. April 8, 1963 [April 17, 1962]. No. 14734/62. Addition to 978,211. Heading H2A. In the parent Specification speed control by " stretching " or " shrinking " poles is achieved by the use of overlapping winding-groups of generally triangular shape (i.e. a smoothly graded distribution). According to the present invention a stepped winding-group of similar characteristics is formed by the use of mutually offset rectangular sets of coils. Thus, in the 4/6 pole winding shown, the coil-sets are displaced by ¢ pole-pitch to produce stepped # and 2# coil-sets. The basic pole number, given by energization pattern (b), is 4¢. To produce 6 poles, the energization of the # set of coils is unchanged as shown in line (c) with (d) giving the number of conductors in each slot, while the 2# set is shifted in phase by 135 degrees by the energization shown in line (e) with (f) giving the number of conductors per slot. The 4-pole case is obtained by reversing the phase of the current fed to the 2# set of coils. Other machines are described.
Patent GB-399261-A (GB)
Title: Improvements in and relating to alloys containing beryllium and silver
IPC: C22C5/06
Filed: 1932-05-25
Abstract: Silver alloys containing 90 per cent or more of silver, for example standard silver alloys containing 92,5 per cent of silver, contain also up to 1,5 per cent of beryllium.  The balance may consist of metals such as copper and nickel normally used in silver alloys.  An example consists of 92,5 per cent of silver, 7 per cent of copper and about 0,5 per cent of beryllium.  In making the alloys, the beryllium may be added in the form of a copper-beryllium alloy.
Patent GB-277124-A (GB)
Title: Improvements in and relating to casting metals and the like
IPC: B22D18/04
Filed: 1926-06-12
Abstract: 277,124. Bower, A. S. June 12, 1926. Pumps for molten materials; plungers.- In casting metals under pressure by means of a plunger pump, the gland 2 is shielded from splashing back of the metal by a dished baffle 7 on the ram 3 and also if desired by a baffle 8 on the molten metal reservoir 1. The working chamber of the ram terminates in a pipe 5 leading to the moulds.
Patent GB-990895-A (GB)
Title: Railway sole plate and attachment clip
Inventor: BAINES ALEC SABIN
IPC: E01B9/28
Filed: 1963-04-16
Abstract: 990,895. Insulating chair plates. J. BURNS Ltd. April 3, 1964 [April 16, 1963], No. 14868/63. Heading E1G. A synthetic plastic chair plate assembly comprises a plate 1 placed between the rail 2 and the sleeper and a pair of clamping plates 6 secured to the chair plate to engage the upper surface of the rail flange. The plate 1 is preferably of a mixture of 70-90% by weight of Nylon 6 and 30-10% by weight of Nylon 66 and has a central channel to receive the rail flange. Members 3 projecting from each side of the plate have bolt holes 3 and bosses 4 engaged by locating recesses in the plates 6. Integral lugs 7 may further locate the clamping plates and the base of the chair plate 1 may be concave to provide resilience in the rail mounting.
Patent GB-768939-A (GB)
Title: A process for the detection of cracks in metal workpieces
IPC: G01N19/08
Filed: 1955-05-24
Abstract: 768,939. Detecting cracks in metal workpieces. ZIEGLER, M. May 24, 1955 [May 26, 1954], No. 14899/55. Class 106 (2). Cracks in metal workpieces are detected by subjecting the piece to a bombardment by a stream of steel-hard, round, oval or otherwise rounded bodies, preferably steel balls, the effect being to push together and form prominences of the exposed edges of the cracks.
Patent GB-368148-A (GB)
Title: Improvements relating to the manufacture of earthenware covers or lids for teapots and the like
IPC: B28B5/08
Filed: 1931-05-21
Abstract: 368,148. Moulding lids &c. for earthenware. COULTER, W., 55, Newcastle Street, Burslem, and WOOD, H. F., Brampton Tree House, Newcastleunder- Lyme. May 21, 1931, No. 14986. [Class 87 (ii).] In a rotary-table moulding-machine for teapot covers and the like in which the moulds on the table a are positioned in succession beneath a reciprocating upper die f, a duplex stationary cam b<1>, b<2> is provided beneath the table which first raises the lower die bodily to free the moulded article from the mould and then raises a central portion of the die still further to present the article for removal by hand. The upper and lower dies co-operate for pressing in the manner described in Specification 305,383, [Class 87 (ii), Moulding plastic &c. substances]. The lower dies comprise an outer shell c, Fig. 4, spring-loaded at c<1>, and an inner shell c<2> fixed therein to carry an inner sliding sleeve c<3> formed with a projecting nose c<5> adapted to engage the part b<1> of the duplex cam. The part c<6> slides in turn in the sleeve c<3> and carries a nose c<8> engaging the part b2 of the duplex cam. The table is fixed in successive positions, in which the upper and lower dies are in alignment, by a pawl engaging notches in the periphery, and by a spring detent a<3> engaging other recesses in the periphery. The detent is released by the movement of the actuating handle to raise the upper die after the pressing stroke. Specifications 368,146 and 368,147 also are referred to.
Patent GB-235239-A (GB)
Title: Improvements in and relating to percussion fuses
IPC: F42C15/22
Filed: 1925-06-09
Abstract: 235,239. Pantoflicek, B. June 9, 1924, [Convention date]. Projectile fuzes. - Relates to percussion fuzes having a primary striker 4 which on arriving at the end of its path releases a secondary spring- loaded striker 8 secured by balls 12 lying in holes in the primary striker. According to the invention, the primary striker is secured by balls 11 which lie between this striker and the detonator 19 and are released by centrifugal force during the flight of the shell. The base fuze shown is armed during flight by centrifugal force acting on an inclined pivoted spring-pressed ring 15 which uncovers an opening 14 to permit of the escape of balls 11. The striker 4 is then free to set forward on impact, the striker 8 being released when the balls 12 enter recesses 18. In a modification, three balls 11 are arranged in vertical alignment over the striker 4 and escape one after the other through the opening 14. The Specification as open to inspection under Sect. 91 (3) (a) describes also a modification, in which the striker 4 is operated by direct impact and the hinged ring 15 is replaced by a safety-bolt which sets back on discharge. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1507411-A (GB)
Title: Internal combustion engine and method of operating same
IPC: F02D21/08
Filed: 1976-04-13
Abstract: 1507411 Pre-combustion chamber I C engines NISSAN MOTOR CO Ltd 13 April 1976 [15 April 1975] 15010/76 Heading F1B The mixture supplied to the pre-combustion chamber 6, Fig. 3, is of the same air/fuel ratio as that supplied to the main combustion chamber 4, and exhaust gas is recirculated to the main combustion chamber during operation at low and intermediate loads. The recirculation is effected via a conduit 16, Fig. 4, leading from the exhaust passage 14 to a control valve (not shown) which is closed at full load but is opened at low and intermediate loads by means of a diaphragm which is subjected to intake manifold depression either directly or via a bleed in accordance with exhaust gas-pressure. The conduit 16 splits into two branch conduits each leading to a respective intake manifold passage 48a which in turn leads via two branch conduits 48b to the main intake passages of two cylinders. The air/fuel ratio of the mixture fed by the carburetter 10 to the main and pre-combustion chambers is about stoichiometric at full load and from about 12:1 to about 16:1 at low and intermediate loads, about 10% to about 25% of the exhaust gas being recirculated to the main combustion chambers at low and intermediate loads. Additional air for burning combustion products in a reaction chamber 68 is fed to each exhaust passageway 42 via an air injection nozzle 24. The exhaust passageways 42 may have double-walled liners 54 providing an insulating air layer 54c between the walls. The reaction chamber 68 is formed by an inner liner 64 jacketted by an outer liner 66 within the exhaust manifold 52, the inner jacket having inlet passages 70 leading from the exhaust passageways 42. The wall 62 separating the main and auxiliary intake manifolds from the exhaust manifold is exposed to radiation from the upper wall 78 of the outer liner 66, which is heated by exhaust gas leaving the reaction chamber 68 via a port 74. An opening 80 may be provided to permit a portion of the gas to contact the wall 62. A slight amount of exhaust gas recirculation into the pre-combustion chambers 6 may be provided.
Patent GB-347500-A (GB)
Title: Improvements relating to the cathodes of electron discharge tubes or thermionic valves
IPC: H01J1/15
Filed: 1930-05-16
Abstract: 347,500. Discharge apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13A, Emmasingel, Eindhoven, Holland. May 16, 1930, No. 15106. Convention date, Oct. 9, 1929. [Class 39 (i).] A cathode for a valve or R÷ntgen ray tube consists of a core 1 of refractory metal such as tungsten, molybdenum or tantalum coated at least partly with a layer 2 of metal such as nickel having a lower melting point on which is wound a wire 3 coated at least partly with electron-emitting material such as alkaline-earth metal or oxide. The wire 3 may be of nickel, or of tungsten coated with nickel, and the electron-emitting material may be applied before or after winding. The core extends beyond the layer so as to reduce the conduction of heat from the cathode. Specifications 274,981 and 275,449, [both in Class 39 (i), Electric lamps, Arc &c.], are referred to.
Patent GB-675302-A (GB)
Title: Improvements in or relating to retractable supporting arms of the "trellis" or "lattice" type for sun-blinds
IPC: E04F10/06
Filed: 1949-06-07
Abstract: 675,302. Sun-blinds. PIPER & SONS, Ltd., F., and HENSMAN, D. April 28, 1950 [June.7, 1949], No. 15111/49. Class 20(iii) In a sun-blind having retractable supporting arms of the lazy-tongs trellis type, thearm 10 to which the front bar 8 of the blind.. 7 is secured is pivoted to an extension of a pivot 21 at the end of one of the most forward levers 5a of the lazy-tongs whereby the plane of the arm 10 is parallel to but spaced from that of the tongs. An arm 22 is pivoted about the pin 21 and lies substantially in the plane of the tongs and is linked at 23 to the other lever 5b of the tongs. A slotted link 28 is pivoted at 29 to the arm 22 and a pin 30 projecting from the arm 10 rides in the slot 31.
Patent GB-258821-A (GB)
Title: Process for the manufacture of solid mixtures of alkali hypochlorite and alkali chloride
IPC: C01B11/06
Filed: 1926-06-17
Abstract: 258,821. OppÚ, A. April 17, 1926, [Convention date]. Alkali hypochlorite.-Solid mixtures of alkali hypochlorite and alkali chloride are prepared by suspending dry alkali hydroxide in a liquid, which, in the cold, has no chemical action on the alkali compounds present or formed or on chlorine and which does not dissolve alkali hypochlorite, and treating this suspension with chlorine. Carbon tetrachloride is stated to be a suitable liquid. Chlorine gas may be passed through the suspension or a solution of chlorine in carbon tetrachloride may be added to the suspension. The product may be separated from the liquid and water formed in the reaction by filtration and drying.
Patent GB-817418-A (GB)
Title: Combustion apparatus
IPC: F02K9/60
Filed: 1957-05-14
Abstract: 817,418. Generating combustion products under pressure. UNITED AIRCRAFT CORPORATION. May 14, 1957 [May 16, 1956], No. 15257/57. Class 51 (1). A combustion chamber comprises an outer casing and an inner flame tube, the flame tube being in the form of a body of revolution produced by rotation of a curved line about the axis of the flame tube, the curved line diverging from the axis in a downstream direction. The curve may be in the form of an exponential curve or in the form of a catenary. The combustion chamber shown which may be suitable for a rocket, a ram-jet unit or reheat equipment of a gas turbine jet engine, comprises an outer casing 10 and an inner flame tube 14 comprising a perforated wall in the form of a body of revolution. The upstream end of the flame tube is closed by a wall 24 and a perforated wall 26 is disposed within the flame tube downstream of the end wall 24 so as to constitute a tuned chamber therebetween. Fuel is supplied to the inflowing air by means of the injectors 20 and combustion is initiated by means of an igniter 22. The object of the invention is to eliminate high-amplitude pressure fluctuations in the combustion chamber which produce destructive screech burning. duit with zinc (see Group II) the conduits 10 (Fig. 1) roll down sloped rails 11 into screw conveyers 12, 13 which feed them into an oxidizing furnace 14 Fig. 3) and thus on to rollers 21 from whence they are conveyed through opening 22 to reducing furnace 24. Flame heaters are provided in the roof of furnace 14 and air is injected from slotted pipes 18, 19 through the conduits. Furnace 24 (Figs. 6 and 7) receives conduits on rollers 26 and arms thus feed the conduits on to screw conveyers 28, 29. Regenerating heaters 38 are provided and an atmosphere of cracked ammonia or hydrogen, pipes 39 supplying the atmosphere to the interior of the conduits. The portion of the reducing furnace to the left of partitions 44 is cooled by passing cooling gases through units 46. The conduits are removed from the furnace by rollers 48.
Patent GB-766826-A (GB)
Title: Improvements in or relating to checking circuits
Inventor: PEARCE JAMES GORDON
IPC: G06F11/08
Filed: 1954-05-25
Abstract: 766,826. Digital electric calculating-apparatus. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. May 5, 1955 [May 25, 1954], No. 15321/54. Class 106 (1). [Also in Group XL (b)] In a circuit arrangement for checking the validity of a coded signal represented by an electrical condition applied to a predetermined number out of a fixed number of leads, each lead controls, according to whether or not it is subjected to the electrical condition, the priming potentials applied to a series of gas discharge tubes, and the plurality of series of tubes are interconnected so that a pulse applied to the first series is repeated by a tube in each successive series and provides an output signal only if the correct predetermined number of leads are subjected to the electrical condition. General.-In the circuit described a valid signal consists in a rise in potential on any two of five input leads 10 ... 14. A positive testing pulse enters at terminal 15 and, if the signal is a valid one, a positive output signal appears on terminal 18. In the particular circuit described an output signal is obtained also when positive signals are applied to all five input leads simultaneously ; this is desirable in using the circuit for automatic telephone exchange monitoring. The testing circuit may be associated with a plurality of storage devices or circuits in succession. Detailed operation.-If a positive signal appears on lead 10 the trigger electrode of tube VK1 will be raised from cathode potential to about +50 volts and the cathode of tube VK2 raised to a similar value. Thus, when a positive test pulse appears at terminal 15 tube VK1 will strike if lead 10 has been marked; otherwise tube VK2 will strike. The rise in cathode potential of the conducting tube is communicated to a further pair of cold cathode gas discharge tubes, either VK3/VK4 or VK6/VK7, controlled by the condition of the second input lead 11; the left-hand one of the selected pair strikes if lead 11 is marked and the right-hand one strikes if lead 11 is not marked. Separate output leads are taken from the cathodes of tubes VK3 and VK7, but a common output channel is provided for tubes VK4 and VK6 via a combining tube VK5 which has its cathode connected to that of the tube VK6 and is connected so as to be fired whenever the tube VK4 is fired. The three output leads from this series of tubes are capacitatively coupled to further pairs of tubes in the series controlled by the lead 12, combining tubes VK10, VK13, again being employed to reduce the number of circuits and components in subsequent series which are arranged to provide an output signal on lead 18 if the input leads carry a valid signal as described above. The checking circuit may be used in conjunction with a fault recorder timing circuit, the signal appearing at lead 18 serving to reset the timing circuit which, in the absence of such a signal, would cause the fault recorder to be operated after a pre-arranged interval.
Patent GB-1261020-A (GB)
Title: Pistons
Inventor: MUNRO ROBERT
IPC: F02F3/08
Filed: 1968-03-29
Abstract: 1,261,020. Turning ellipses; making pistons. ASSOCIATED ENG. Ltd. 25 June, 1969 [29 March, 1968], No. 15369/68. Headings B3A and B3T. [Also in Division F2] A method of machining the skirt of a metal piston 5, Fig. 4, to an elliptical shape comprises holding the piston stationary in a workholder 6, driving a cutting tool 7 in rotation about an axis X inclined to the piston axis Y and advancing the tool along the piston axis, the stiffness required to produce a satisfactory bedding pattern when the skirt is machined to the elliptical shape being imparted to different regions of the skirt by means of one or more inserts or struts or by forming the internal profile of the piston so as to produce that required stiffness in the different regions. The required stiffness may be obtained upon machining by use of struts 8, Fig. 5, slots 10 and a steel ring insert 9, Fig. 6, having a greater radial thickness at one thrust side of the piston than the other; more than one slot or insert may be provided and the or each slot or insert may extend only partially around the skirt. Alternatively, the piston may be cast around a core or cores to produce the correct shape for subsequent machining.